Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «T»:
Treadmill: A machine with a moving strip on which one walks without moving forward. A treadmill was originally a wide wheel turned by the weight of people climbing on steps around its edge, used in the past to provide power for machines or as a punishment in prisons.
The treadmill today serves a...
Treadmill test: See exercise cardiac treadmill....
Treadmill, exercise: See Treadmill....
Treatment, palliative: To palliate a disease is to treat it partially and insofar as possible, but not cure it completely. Palliation cloaks a disease. Also sometimes called symptomatic treatment.
To take a case, a 91-year-old man was found to have a tumor in his lung. He did not have chest surgery ...
Treatment, PUVA: See: PUVA....
Treatment, symptomatic: Therapy that eases the symptoms without addressing the basic cause of the disease.
For example, symptomatic treatment of advanced lung cancer that has spread (metastasized) beyond the lung is designed to decrease the pain and other symptoms but not to eradicate the disease....
Tremor: Any abnormal repetitive shaking
movement of the body. Tremors have many causes and can be inherited, be related to illnesses such as thyroid disease, or caused by fever, hypothermia, drugs or fear....
Trench fever: A disease borne by body lice that
was first recognized in the trenches of World War I, when it is
estimated to have affected more than a million people in Russia and
on the fronts in Europe. Trench fever was again a major problem in
the military in World War II and is seen endemi...
Trench mouth: A progressive painful infection of the mouth and throat with ulceration, swelling and sloughing off of dead tissue from the mouth and throat due to the spread of infection from the gums.
Certain germs (including fusiform bacteria and spirochetes) have been thought to be involved, but...
Treponema pallidum: The cause of syphilis,
this is a microscopic bacterial organism called a spirochete, a worm-like spiral-shaped
organism that wiggles vigorously when viewed under a microscope. Treponema pallidum was
discovered in 1905 by the German bacteriologist Fritz Schaudinn (1871-1906) who n...
Triage: The process of sorting people based on their need for immediate medical treatment as compared to their chance of benefiting from such care. Triage is done in emergency rooms, disasters and wars when limited medical resources must be allocated to maximize the number of survivors.
The US Depar...
Trial, clinical: A trial done to evaluate the effectiveness and safety of medications or medical devices by monitoring their
effects on large groups of people.
Clinical research trials may be conducted by government health agencies such as NIH, researchers
affiliated with a hospital or universit...
Triceps: The triceps muscle extends
(straightens) the elbow. Its full name is the triceps brachii. It can be felt as
the tense muscle in the back of the upper arm while doing push-ups.
Its full name is the triceps brachii. The triceps has three heads,
or origins. "Triceps" is Latin for three-head...
Trich- (prefix): Pertaining to hair. As in trichinosis, a disease due to the parasite Trichinella spiralis which was thought to look like a little spiral hair. From the Greek thrix, trichos, meaning hair. See also: Tricho- (prefix)....
Trichina spiralis: is a parasitic worm that lives
in the intestines and causes a serious illness known as
trichinosis. The eggs usually enter the body via raw or
undercooked pork, sausage or bear meat. In the intestines,
the eggs hatch, mature, and migrate to other parts of the
body through th...